Quarterbacks are ranked according to DYAR, or Defense-adjusted Yards Above Replacement. This gives the value of the quarterback's performance compared to replacement level, adjusted for situation and opponent and then translated into yardage. DYAR (and its cousin, YAR, which isn't adjusted based on opponent) is further explained here.
The other statistic given is DVOA, or Defense-adjusted Value Over Average. This number represents value, per play, over an average quarterback in the same game situations. The more positive the DVOA rating, the better the player's performance. Negative DVOA represents below-average offense. DVOA (and its cousin, VOA, which isn't adjusted based on opponent) is further explained here.
The simple version: DYAR means a quarterback with more total value. DVOA means a quarterback with more value per play.
Effective Yards, listed in red, translate DVOA into a yards per attempt figure. This provides an easy comparison: in general, players with more Effective Yards than standard yards played better than standard stats would otherwise indicate, while players with fewer Effective Yards than standard yards played worse than standard stats would otherwise indicate. Effective Yards are not the best way to measure total value because they are more dependent on usage than DYAR.
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| P.Manning | IND | 1,757 | 1 | 1,588 | 1 | 33.5% | 1 | 29.2% | 597 | 4,249 | 5,557 | 29 | 4 | 1 | 10 | 67.1% |
| T.Green | KC | 1,282 | 2 | 1,338 | 2 | 25.1% | 4 | 26.7% | 555 | 3,978 | 4,606 | 24 | 4 | 1 | 12 | 63.2% |
| S.McNair | TEN | 1,178 | 3 | 1,171 | 3 | 31.9% | 2 | 31.6% | 425 | 3,196 | 3,808 | 24 | 6 | 5 | 7 | 63.4% |
| M.Hasselbeck | SEA | 913 | 4 | 885 | 4 | 14.4% | 8 | 13.6% | 561 | 3,691 | 4,120 | 26 | 2 | 1 | 15 | 61.3% |
| D.Culpepper | MIN | 719 | 5 | 862 | 5 | 11.3% | 9 | 15.7% | 490 | 3,303 | 3,560 | 25 | 8 | 4 | 10 | 66.2% |
| A.Brooks | NO | 683 | 6 | 712 | 8 | 8.0% | 10 | 8.8% | 560 | 3,482 | 3,801 | 24 | 3 | 10 | 8 | 59.8% |
| J.Plummer | DEN | 670 | 7 | 815 | 6 | 22.5% | 5 | 29.7% | 320 | 2,165 | 2,517 | 15 | 1 | 1 | 7 | 63.4% |
| J.Kitna | CIN | 668 | 8 | 647 | 9 | 7.4% | 11 | 6.8% | 566 | 3,443 | 3,813 | 26 | 4 | 4 | 14 | 62.9% |
| T.Brady | NE | 583 | 9 | 564 | 10 | 5.4% | 13 | 4.9% | 568 | 3,439 | 3,632 | 23 | 8 | 4 | 12 | 60.5% |
| B.Favre | GB | 551 | 10 | 722 | 7 | 6.1% | 12 | 11.5% | 496 | 3,331 | 3,318 | 32 | 3 | 2 | 21 | 65.4% |
| B.Johnson | TB | 511 | 11 | 563 | 11 | 2.4% | 14 | 3.8% | 589 | 3,744 | 3,726 | 26 | 4 | 1 | 20 | 62.4% |
| D.McNabb | PHI | 424 | 12 | 331 | 15 | 1.4% | 16 | -1.3% | 533 | 3,153 | 3,305 | 16 | 3 | 3 | 11 | 58.3% |
| V.Testaverde | NYJ | 401 | 13 | 344 | 14 | 19.7% | 6 | 15.3% | 205 | 1,346 | 1,592 | 7 | 1 | 0 | 2 | 62.4% |
| J.Garcia | SF | 357 | 14 | 394 | 13 | 2.2% | 15 | 3.6% | 416 | 2,660 | 2,642 | 18 | 3 | 3 | 12 | 58.1% |
| B.Leftwich | JAC | 324 | 15 | 206 | 19 | 0.3% | 17 | -3.9% | 445 | 2,870 | 2,733 | 14 | 5 | 5 | 16 | 57.3% |
| T.Maddox | PIT | 316 | 16 | 316 | 16 | -2.3% | 21 | -2.3% | 566 | 3,287 | 3,293 | 18 | 2 | 2 | 17 | 57.8% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| M.Bulger | STL | 309 | 17 | 526 | 12 | -2.5% | 22 | 3.5% | 575 | 3,636 | 3,308 | 22 | 2 | 6 | 22 | 63.3% |
| T.Rattay | SF | 293 | 18 | 244 | 18 | 27.6% | 3 | 21.1% | 125 | 802 | 1,007 | 7 | 0 | 0 | 2 | 61.9% |
| J.Fiedler | MIA | 231 | 19 | 161 | 21 | -0.3% | 18 | -3.6% | 339 | 2,090 | 2,035 | 11 | 2 | 4 | 12 | 57.2% |
| C.Pennington | NYJ | 220 | 20 | 132 | 22 | -0.7% | 19 | -4.9% | 327 | 2,019 | 2,000 | 13 | 6 | 2 | 12 | 64.3% |
| K.Collins | NYG | 213 | 21 | 89 | 25 | -4.8% | 24 | -8.5% | 533 | 3,045 | 3,004 | 13 | 6 | 5 | 15 | 57.3% |
| J.Delhomme | CAR | 201 | 22 | 267 | 17 | -4.6% | 23 | -2.4% | 487 | 3,148 | 2,738 | 19 | 9 | 6 | 16 | 59.2% |
| T.Banks | HOU | 190 | 23 | 120 | 23 | 16.4% | 7 | 6.2% | 115 | 651 | 815 | 5 | 1 | 0 | 2 | 61.0% |
| D.Flutie | SD | 99 | 24 | 182 | 20 | -2.2% | 20 | 5.3% | 179 | 1,112 | 1,026 | 9 | 1 | 4 | 4 | 55.5% |
| K.Holcomb | CLE | 42 | 25 | -6 | 27 | -9.1% | 25 | -11.4% | 328 | 1,726 | 1,724 | 10 | 3 | 2 | 12 | 64.5% |
| Q.Carter | DAL | 31 | 26 | 100 | 24 | -10.2% | 27 | -8.2% | 550 | 3,232 | 2,768 | 17 | 4 | 2 | 20 | 58.0% |
| P.Ramsey | WAS | 22 | 27 | -11 | 29 | -10.2% | 26 | -11.6% | 375 | 2,044 | 1,883 | 14 | 2 | 5 | 9 | 53.3% |
| D.Carr | HOU | 14 | 28 | -9 | 28 | -10.5% | 28 | -11.6% | 314 | 1,935 | 1,622 | 9 | 2 | 1 | 13 | 57.2% |
| D.Johnson | ATL | 0 | 29 | -42 | 30 | -11.1% | 29 | -13.7% | 264 | 1,639 | 1,329 | 8 | 2 | 0 | 11 | 56.6% |
| R.Gannon | OAK | -17 | 30 | 19 | 26 | -12.3% | 30 | -9.9% | 244 | 1,230 | 1,167 | 6 | 2 | 0 | 4 | 56.1% |
| D.Kanell | DEN | -28 | 31 | -152 | 36 | -15.2% | 31 | -32.9% | 108 | 424 | 525 | 2 | 3 | 0 | 4 | 51.5% |
| M.Vick | ATL | -71 | 32 | -105 | 34 | -21.1% | 37 | -25.8% | 110 | 510 | 479 | 4 | 2 | 1 | 3 | 50.5% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| T.Hasselbeck | WAS | -78 | 33 | -78 | 31 | -17.5% | 33 | -17.6% | 188 | 983 | 875 | 5 | 1 | 1 | 7 | 53.7% |
| T.Couch | CLE | -103 | 34 | -93 | 33 | -18.1% | 34 | -17.4% | 228 | 1,269 | 1,055 | 7 | 2 | 3 | 6 | 59.6% |
| A.Wright | BAL | -120 | 35 | -91 | 32 | -20.9% | 36 | -18.5% | 202 | 1,100 | 816 | 9 | 5 | 1 | 8 | 53.4% |
| J.Blake | ARI | -147 | 36 | -212 | 38 | -17.2% | 32 | -20.0% | 392 | 2,193 | 1,744 | 13 | 3 | 3 | 15 | 57.6% |
| R.Mirer | OAK | -149 | 37 | -143 | 35 | -21.3% | 38 | -20.8% | 242 | 1,138 | 986 | 3 | 2 | 1 | 5 | 53.0% |
| B.Griese | MIA | -184 | 38 | -234 | 40 | -31.2% | 42 | -36.7% | 144 | 727 | 486 | 5 | 0 | 4 | 6 | 57.4% |
| D.Bledsoe | BUF | -256 | 39 | -278 | 41 | -19.1% | 35 | -19.7% | 528 | 2,630 | 2,273 | 11 | 5 | 8 | 11 | 58.3% |
| C.Chandler | CHI | -275 | 40 | -192 | 37 | -32.6% | 43 | -26.1% | 210 | 1,006 | 674 | 3 | 4 | 0 | 7 | 56.0% |
| D.Brees | SD | -286 | 41 | -374 | 45 | -23.8% | 40 | -27.6% | 378 | 1,984 | 1,450 | 11 | 1 | 4 | 15 | 58.2% |
| K.Boller | BAL | -289 | 42 | -225 | 39 | -30.6% | 41 | -26.3% | 246 | 1,254 | 803 | 7 | 4 | 4 | 9 | 53.2% |
| J.Palmer | NYG | -299 | 43 | -306 | 43 | -48.8% | 46 | -49.7% | 132 | 459 | 232 | 3 | 1 | 1 | 4 | 52.2% |
| K.Kittner | ATL | -336 | 44 | -342 | 44 | -57.2% | 47 | -58.1% | 120 | 398 | 129 | 2 | 0 | 0 | 6 | 38.9% |
| J.McCown | ARI | -403 | 45 | -377 | 46 | -43.3% | 44 | -41.2% | 195 | 874 | 450 | 5 | 8 | 2 | 5 | 57.6% |
| J.Harrington | DET | -404 | 46 | -282 | 42 | -22.5% | 39 | -19.1% | 568 | 2,872 | 2,323 | 17 | 5 | 0 | 21 | 56.3% |
| K.Stewart | CHI | -551 | 47 | -496 | 47 | -44.8% | 45 | -41.4% | 275 | 1,267 | 575 | 7 | 2 | 3 | 11 | 51.4% |
| Player | Team | DYAR | YAR | DVOA | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| B.Volek | TEN | 234 | 201 | 35.9% | 29.3% | 74 | 496 | 718 | 4 | 0 | 1 | 1 | 64.7% |
| G.Frerotte | MIN | 203 | 243 | 33.8% | 42.7% | 71 | 667 | 640 | 7 | 1 | 0 | 2 | 58.5% |
| N.O'Donnell | TEN | 187 | 149 | 83.7% | 64.1% | 27 | 232 | 414 | 2 | 0 | 0 | 1 | 66.7% |
| D.Garrard | JAC | 72 | 66 | 66.8% | 60.4% | 12 | 86 | 173 | 1 | 0 | 0 | 0 | 75.0% |
| M.Brunell | JAC | 66 | 11 | 0.1% | -9.3% | 93 | 436 | 563 | 2 | 0 | 0 | 0 | 65.9% |
| T.Brown | BUF | 34 | 8 | 12.5% | -5.4% | 19 | 153 | 162 | 0 | 0 | 0 | 1 | 77.8% |
| T.Collins | KC | 13 | 20 | 6.0% | 15.0% | 12 | 74 | 78 | 0 | 0 | 0 | 0 | 75.0% |
| T.Bouman | NO | -7 | -1 | -18.5% | -12.7% | 15 | 73 | 66 | 1 | 0 | 1 | 0 | 53.8% |
| M.Tuiasosopo | OAK | -17 | 7 | -17.5% | -8.7% | 46 | 310 | 202 | 0 | 1 | 0 | 3 | 58.1% |
| S.King | TB | -44 | -51 | -36.6% | -40.7% | 25 | 105 | 79 | 1 | 0 | 0 | 1 | 68.2% |
| Player | Team | DYAR | YAR | DVOA | VOA | Passes | Yards | EYds | TD | FK | FL | INT | C% |
| R.Grossman | CHI | -55 | -12 | -21.8% | -13.5% | 80 | 430 | 342 | 2 | 3 | 0 | 1 | 53.4% |
| T.Martin | OAK | -65 | -56 | -79.8% | -69.9% | 17 | 64 | -10 | 0 | 0 | 1 | 1 | 37.5% |
| T.Dilfer | SEA | -78 | -66 | -129.4% | -111.1% | 10 | 21 | -53 | 1 | 1 | 1 | 1 | 50.0% |
| R.Johnson | 2TM | -84 | -103 | -67.3% | -79.8% | 24 | 72 | 6 | 0 | 0 | 0 | 1 | 55.0% |
| R.Peete | CAR | -85 | -77 | -131.9% | -120.1% | 13 | -1 | -58 | 0 | 0 | 0 | 0 | 40.0% |
| A.Van Pelt | BUF | -144 | -136 | -207.4% | -196.7% | 13 | 42 | -137 | 0 | 0 | 0 | 3 | 41.7% |
| M.McMahon | DET | -152 | -153 | -87.8% | -88.3% | 33 | 78 | -47 | 0 | 0 | 0 | 2 | 29.0% |
| C.Redman | BAL | -176 | -204 | -149.2% | -170.9% | 20 | 10 | -137 | 0 | 1 | 2 | 2 | 53.8% |
| S.Beuerlein | DEN | -188 | -156 | -54.2% | -46.9% | 73 | 404 | 96 | 2 | 3 | 0 | 5 | 54.1% |
| D.Ragone | HOU | -232 | -263 | -92.1% | -102.9% | 49 | 80 | -85 | 0 | 3 | 0 | 1 | 51.3% |
| K.Warner | STL | -243 | -208 | -67.3% | -59.2% | 72 | 314 | 18 | 1 | 3 | 3 | 1 | 58.5% |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| D.Culpepper | MIN | 127 | 1 | 126 | 1 | 25.4% | 6 | 24.8% | 64 | 441 | 543 | 4 | 3 |
| D.McNabb | PHI | 84 | 2 | 78 | 4 | 14.8% | 15 | 12.7% | 56 | 376 | 413 | 3 | 2 |
| J.Garcia | SF | 84 | 3 | 82 | 3 | 17.1% | 13 | 16.4% | 49 | 324 | 404 | 8 | 2 |
| J.Plummer | DEN | 79 | 4 | 88 | 2 | 34.4% | 3 | 39.8% | 28 | 213 | 306 | 3 | 1 |
| M.Vick | ATL | 70 | 5 | 60 | 6 | 29.3% | 5 | 23.1% | 33 | 261 | 290 | 1 | 1 |
| K.Stewart | CHI | 65 | 6 | 65 | 5 | 8.9% | 16 | 8.8% | 53 | 296 | 377 | 3 | 1 |
| D.Flutie | SD | 47 | 7 | 48 | 8 | 24.2% | 9 | 25.1% | 25 | 173 | 204 | 2 | 1 |
| J.McCown | ARI | 47 | 8 | 42 | 12 | 24.4% | 8 | 20.8% | 25 | 165 | 199 | 1 | 0 |
| S.McNair | TEN | 47 | 9 | 46 | 10 | 23.7% | 10 | 23.4% | 24 | 142 | 204 | 4 | 1 |
| M.Bulger | STL | 46 | 10 | 49 | 7 | 45.3% | 1 | 49.0% | 13 | 91 | 164 | 4 | 0 |
| C.Chandler | CHI | 43 | 11 | 40 | 13 | 33.3% | 4 | 28.3% | 9 | 38 | 104 | 0 | 0 |
| A.Brooks | NO | 40 | 12 | 42 | 11 | 4.5% | 17 | 5.4% | 40 | 190 | 269 | 2 | 1 |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| D.Carr | HOU | 40 | 13 | 47 | 9 | 21.4% | 11 | 27.0% | 22 | 154 | 181 | 2 | 1 |
| D.Brees | SD | 36 | 14 | 32 | 14 | 42.2% | 2 | 36.4% | 14 | 90 | 133 | 0 | 0 |
| T.Green | KC | 33 | 15 | 30 | 15 | 21.0% | 12 | 18.1% | 17 | 89 | 149 | 2 | 0 |
| B.Leftwich | JAC | 30 | 16 | 27 | 16 | 15.6% | 14 | 13.1% | 18 | 115 | 148 | 2 | 1 |
| C.Pennington | NYJ | 26 | 17 | 23 | 17 | 24.6% | 7 | 20.4% | 12 | 47 | 111 | 2 | 0 |
| Q.Carter | DAL | 23 | 18 | 17 | 19 | -4.2% | 23 | -6.2% | 49 | 262 | 265 | 2 | 2 |
| J.Blake | ARI | 22 | 19 | 15 | 21 | 2.4% | 19 | -2.0% | 29 | 178 | 160 | 2 | 2 |
| J.Fiedler | MIA | 19 | 20 | 21 | 18 | -0.9% | 20 | 0.4% | 26 | 101 | 167 | 3 | 1 |
| M.Hasselbeck | SEA | 13 | 21 | 16 | 20 | -2.0% | 22 | 0.6% | 25 | 135 | 120 | 3 | 1 |
| P.Ramsey | WAS | 9 | 22 | 11 | 22 | 4.5% | 18 | 7.8% | 9 | 66 | 61 | 1 | 0 |
| J.Kitna | CIN | 6 | 23 | 2 | 24 | -6.1% | 24 | -10.0% | 19 | 134 | 81 | 0 | 1 |
| K.Collins | NYG | 4 | 24 | 7 | 23 | -1.4% | 21 | 5.2% | 8 | 57 | 37 | 0 | 0 |
| Player | Team | DYAR | Rk | YAR | Rk | DVOA | Rk | VOA | Runs | Yards | EYds | TD | FUM |
| J.Harrington | DET | 2 | 25 | -4 | 27 | -10.0% | 25 | -16.1% | 19 | 100 | 81 | 0 | 1 |
| D.Bledsoe | BUF | -1 | 26 | -1 | 25 | -14.2% | 26 | -13.4% | 10 | 38 | 47 | 2 | 1 |
| T.Brady | NE | -4 | 27 | -7 | 29 | -14.7% | 27 | -16.7% | 22 | 80 | 97 | 1 | 1 |
| R.Mirer | OAK | -5 | 28 | -2 | 26 | -18.3% | 29 | -14.5% | 15 | 87 | 42 | 1 | 1 |
| B.Favre | GB | -8 | 29 | -5 | 28 | -31.4% | 31 | -23.2% | 8 | 24 | 12 | 0 | 0 |
| J.Delhomme | CAR | -9 | 30 | -8 | 30 | -18.0% | 28 | -17.1% | 23 | 55 | 90 | 1 | 0 |
| A.Wright | BAL | -10 | 31 | -10 | 31 | -24.2% | 30 | -23.7% | 16 | 87 | 37 | 0 | 1 |
| T.Hasselbeck | WAS | -14 | 32 | -12 | 32 | -42.1% | 33 | -38.7% | 9 | 46 | 1 | 0 | 1 |
| D.Johnson | ATL | -20 | 33 | -25 | 34 | -54.6% | 35 | -65.3% | 8 | 25 | -12 | 1 | 1 |
| K.Boller | BAL | -26 | 34 | -30 | 35 | -39.6% | 32 | -43.1% | 19 | 63 | 8 | 0 | 1 |
| B.Johnson | TB | -27 | 35 | -24 | 33 | -46.2% | 34 | -43.1% | 13 | 46 | -5 | 0 | 1 |
| P.Manning | IND | -39 | 36 | -41 | 36 | -69.6% | 36 | -71.6% | 13 | 39 | -42 | 0 | 1 |